Alarm for carding-machines.



4 E. P. SGHMITT,

ALARM FOR GARDING MACHINES.

APPLICATION FILED APR. 16. mos.

939,75Q. Patented Nov. 9, 1909.

ALARM FOB GARDiIt G-IEACHIH Application filed April. 16, 1908. SerialE0.

object of the invention is to provide a this character Which will notifye operator of the conditions ot the roving so thit he may correct thedifiiculty. A numl r ie of 'lerices' have been devised for this purposebe they have many detects. F or inst on elerni is mode to sound when Uroving breaks it will not sound when the rovin becomes bunched under therollers,

brol'en. I it is the object of my invention to obviate theseditliculties, and broadly speaking to provide an alarm which Will beactuated by any abnormal condition of the roving, such its a too line ortoo thin roving owing to the neglect on the part of the operator to fillthe feed box, or to notify the operator it the comb belt br aks or slipsoff, which causes choking up of the machine.

With these and other objects in view, the invention consists of certainnovel features or construction, combination and arrangement of parts, aswill be more fully described and particularly pointed out in theappended claims.

Figure 1 is at front elevation, Fig. 2 is a longitudinal section, andFig. is a trans-- verse vertical section on the line. 3-3 of Fig. 1.

ter meshing With the 1G. icarried ugon the outer pint-1e. The gears 9and 10 have Specification of Letters Patent.

relatively long teeth so that when the unper roller is raised by theroving th' l) and it) will not be separated or dish guged. The innerpintlc of the roller (1 extended so as to enter a terminal ho); curriedupon the adjustable bloc is slotted at 13, to receive the adjusting s:rcu' is, passing throu; l the block into the b i As shown in iig. 3 Xemplo a pair euit terminals 15 and 1G, whi'h are Within the terminal be:

each and from the box y on insu pound such as plumbers Wax or in"suituble substance WlUCll may be poured in a melt are spread wa t insubstantially ti-shay q. l P w 1, l'ornizition, as to QQLB'HE the tree.ino e ment of the enter e. The spring ire closc togethe n p so as to prthe passage or the iintle lthout contacting With both of them. lVht-nthe roving is of normal size and runso hing freely through the rollersthe contacting end of the pinlle i7 is raised su'liicien h from thelower part of the terminals 15 e1 l6, so as to prevent engagementtherew' if the roving brcelrs or becomes thin l reef son of the operatorfailing to fill the so if box the top roller will drop down andcontacting end or the pintle 17 will on the contacts at their lowestpart with tery B. it the roving becomes bunch the machine becomescholreo. the roller 6 will rise owing to the excess amount of mate itraveling betvlzeen the rollers 6 and 7 cause the contacting end of thepintle 1! engage the upper member of the and close the circuit of thealarm operating the adjusting screw 1% seen that any suitableadjustnien. made.

It will be seen that as the en the roller 6 is the heavier, th= isrisehigher at its pint'ie end when the roving, and thereby bring theengagement with the contacts. roving becozn s thin or breaks and theroller to drop, the pinion on the roller 6 has its in engagement w ietcctii I if groove between the D11 or n and therefore cannot op terther..ihe end herring the gamete l therefore permitted to drop intoengagement with the contacts and thus close the circuit. From theforegoing description, taken in connection with the accompanying drawandthe minor details of construction may be 5 resorted to without departingfrom the principle or sacrificing any of the advantages of thisinvention as defined in the appended claims.

llaving thus described my invention, what l claim and desire to secureby Letters Patv cnt is:-

l. A deviceof the class described, the combination with a frame, of apair of roving rollers revolubly mounted therein, one oil which isadapted to move to tlltl and from the other roll in accordance withchanges in the size of the roving. a terminal box cari l l t ried bysaid frame adjacent said rollers. a

pair of terminals therein, an electrical alarm circuit including saidterminals, means for adpisting'the terminals w1th respect to therollers, and means 0: rried by the movable t roller for bridging, theterminals in the extreme movement thereof in either direction.

2. A rm'ing alarm, comprising a vertically movable roving roller, :1contact carried thcrel v. an electric circuit, and a single pair ofterminals arranged on either side of said contact and adapted to bebridged by the moving contact in the extreme movement of said roller ineither direction.

it. i\ roving alarm comprising a vertically movable rotary roller, anelectric alarm circult, a pair of separated terminals therein,

and a contacting device lying between said terminals but normally out ofengagement therewith, said contacting device being controlled by saidroller and adapted to engage said itl'll'lllltllH in the extrememovement of said roller in either directioi'i.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witncs-ses.

EUGENE P; SCHMII' Witnesses:

.lacon W. llcnonoLL, Joiix Common.

